fastvariabel

Fastvariabel is a compound term found in some Scandinavian languages and technical contexts, formed from words meaning "fixed" (fast) and "variable" (variabel). It generally denotes a value or parameter that is treated as fixed during a given analysis, operation, or scope, and is conceptually analogous to what English-language sources call a constant, immutable variable, or fixed parameter.

In mathematics and statistics, a fastvariabel typically refers to a quantity held constant to study the effect of other variables or to define a controlled condition. In computer science and software development, the term is used informally to describe variables that are not intended to change after initialization, corresponding to language constructs such as constants, read-only variables, or immutable bindings (for example, const, final, or val in various programming languages).

Usage varies by discipline and language; in everyday technical communication it can serve as a concise way to contrast fixed parameters with mutable ones. Because it is not a standardized English technical term, writers and speakers often prefer established terms like constant, immutable, or parameter when clarity is important across language communities.

Related concepts include constants, parameters, immutable data, and controlled variables. Understanding the intended meaning of fastvariabel in context requires attention to the discipline, language, and scope in which the term appears.